5263805849 has 4 divisors (see below), whose sum is σ = 5269977636. Its totient is φ = 5257634064.

The previous prime is 5263805837. The next prime is 5263805887. The reversal of 5263805849 is 9485083625.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3050573824 + 2213232025 = 55232^2 + 47045^2 .

It is a cyclic number.

It is not a de Polignac number, because 5263805849 - 2⁸ = 5263805593 is a prime.

It is a super-2 number, since 2×5263805849² = 55415304031933221602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5263805797 and 5263805806.

It is not an unprimeable number, because it can be changed into a prime (5263805819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3084614 + ... + 3086319.

It is an arithmetic number, because the mean of its divisors is an integer number (1317494409).

Almost surely, 2^5263805849 is an apocalyptic number.

It is an amenable number.

5263805849 is a deficient number, since it is larger than the sum of its proper divisors (6171787).

5263805849 is an equidigital number, since it uses as much as digits as its factorization.

5263805849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171786.

The product of its (nonzero) digits is 2073600, while the sum is 50.

The square root of 5263805849 is about 72552.0905901408. The cubic root of 5263805849 is about 1739.5354651278.

The spelling of 5263805849 in words is "five billion, two hundred sixty-three million, eight hundred five thousand, eight hundred forty-nine".